For example, a 56-year-old man with a rGFR of 24 ml/min/1.73 m2 on the operative side, a rGFR of 36 ml/min/1.73 m2 on the healthy side, serum cystatin C of 0.91 mg/L, and a preoperative eGFR of 67 ml/min/1.73 m2 had a history of hypertension and diabetes. Here, CST3 is linked to diabetes mellitus.